Measurement of metabolism of worker ants by using the elimination of caesium-134
In order to find a method for measuring field metabolism of worker ants the elimination of134Cs by two ant species has been investigated. Equations relating temperature to radiocaesium elimination and metabolism have been found. From these equations the relationship between elimination and metabolism is calculated. Consequently, the elimination of the isotope can be used for measuring metabolism.
A pilot field experiment withLasius alienus (Först.) reveals that the traditional methods of estimating field metabolism give values which are considerably lower than the value based on caesium elimination rate. This difference is supposed to be mainly due to greater motor activity of the animals in the field. Consequently, the value of the caesium elimination methods is closer to the “true” value of field metabolism.
KeywordsField Experiment Traditional Method Motor Activity Elimination Rate Estimate Field
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- Baker, C.E., Dunaway, P.B., Auerbach, S.J.: Measurement of metabolism in cottonrats by retention of Cesium-134. Oak Ridge Nat. Lab. ORNL-TM-2069, Oak Ridge, Tennessee, USA (1968)Google Scholar
- Buscarlet, L.A.: The use of22Na for determining the food intake of migratory locust. Oikos25, 204–208 (1974)Google Scholar
- Crossley, D.A., Jr.: Consumption of vegetation by insects. In: Radioecology (V. Schultz, A.W. Klement, Jr., eds.), pp. 427–430 (1963)Google Scholar
- Crossley, D.A., Jr.: Radioisotope measurement of food consumption by a leaf beetle species,Chrysomela knabi Brown. Ecology47, 1–8 (1966)Google Scholar
- Crossley, D.A., Jr., Van Hook, R.J., Jr.: Energy assimilation by the House Cricket,Acheta domesticus, measured with radioactive Chromium-51. Ann. Entomol. Soc. Amer.63.2, 512–515 (1970)Google Scholar
- Crossley, D.A., Jr., Howeden, H.F.: Insect-vegetation relationships in an area contaminated by radioactive wastes. Ecology42, 302–317 (1961)Google Scholar
- Gösswald, K., Kloft, W.: Tracer experiments on food exchange in ants and termites. Radiation and radioisotopes applied to insects of agricultural importance. International Atomic Energy Agency, Vienna, pp. 25–42 (1963)Google Scholar
- Jensen, T.F., Nielsen, M.G.: The influence of body size and temperature on worker ant respiration. Nat. Jutl.18, 21–25 (1975)Google Scholar
- Kowal, N.E., Crossley, D.A.: The ingestion rates of microarthropods in pine more, estimated with radioactive calcium. Ecology52, 444–452 (1971).Google Scholar
- Nielsen, M.G.: An attempt to estimate energy flow through a population of workers ofLasius alienus (Först.) (Hymenoptera: Formicidae). Nat. Jutl.16, 99–107 (1972a)Google Scholar
- Nielsen, M.G.: Aboveground activity of the AntLasius alienus (Först.) (Hymenoptera: Formicidae). Nat. Jutl.16, 83–94 (1972b)Google Scholar
- Nielsen, M.G., Jensen, T.F.: Økologiske studier overLasius alienus (Först.) (Hymenoptera: Formicidae) [With a summary: Ecological studies onLasius alienus (Först.)]. Ent. Meddr.43, 5–16 (1975)Google Scholar
- Odum, E.P., Golley, F.B.: Radioactive tracers as an aid to the measurement of energy flow at the population level in nature. In: Radioecology (V. Schultz, A.W. Klement, Jr., eds.), pp. 403–410 (1963)Google Scholar
- Otto, D.: Die roten Waldameisen, 151 S. Wittenberg Lutherstadt: Ziemsen 1962Google Scholar
- Reichle, D.E.: Relation of body size to food intake, oxygen consumption, and trace element metabolism in forest floor arthropods. Ecology49, 538–542 (1968)Google Scholar
- Williams, E.C., Jr., Reichle, D.E.: Radioactive tracers in the study of energy turnover by a grazing insect (Chrystochus auratus Fab.; Coleoptera Chrysomelidae). Oikos19, 10–18 (1968)Google Scholar